未知题型

INTEGE X READ ， N X=1 IF(N>=0) X=2X IF(N>=5) X=2X+1 IF(N>15) X=3X-1 PRINT *， X END 如果从键盘输入15，则程序运行结果为__________。

【参考答案】

1023解释过程如下：1. 输入的值为15，所以N=15。2. 判断N>=0，条件成立，X=2*X，此时X初始值为1，所......

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INTEGE X READ *， N X=1 IF(N>=0) X=2*X IF(N>=5) X=2*X+1 IF(N>15) X=3*X-1 PRINT *， X END 如果从键盘输入15，则程序运行结果为__________。

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